Pollsters were bound to be wrong from the outset. No survey could ever measure the trajectory of voting for 50 million registered voters, including millions who were undecided until the last minute.

Labour derives its support from working classes and ethnic minorities. These groups became gradually disenchanted with Labour's foreign policies in Iraq and Palestine, in addition to the salient fact that ethnic and religious minorities are three times less likely to vote and to even register to vote than white voters.